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Roll-off is also significant on audio loudspeaker crossover filters: here the need is not so much for a high roll-off but that the roll-offs of the high frequency and low-frequency sections are symmetrical and complementary. An interesting need for high roll-off arises in EEG machines. Here the filters mostly make do with a basic 20 dB/decade ...
The Watson class are a group of eight gas-turbine-powered vessels built at National Steel and Shipbuilding Company (NASSCO) in San Diego, California between 1996 and 2002 for MSC. They are 951.4 ft (290.0 m) long and 106 ft (32 m) wide. USNS Watson (T-AKR-310) USNS Sisler (T-AKR-311) USNS Dahl (T-AKR-312)
At the resonant frequency, energy is transmitted efficiently, and the incoming vibration is amplified. Damping in the system limits the level of amplification. Above the resonant frequency, little energy can be transmitted, and the curve rolls off to a low value. A passive isolator can be seen as a mechanical low-pass filter for vibrations.
Pages in category "Construction equipment manufacturers of the United States" The following 33 pages are in this category, out of 33 total. This list may not reflect recent changes .
Construction equipment rental companies (1 C, 14 P) E. Engineering vehicles (11 C, 92 P) H. Heavy equipment (4 C, 22 P) M. Construction equipment manufacturers (4 C ...
Cutoff frequency is the frequency beyond which the filter will not pass signals. It is usually measured at a specific attenuation such as 3 dB. Roll-off is the rate at which attenuation increases beyond the cut-off frequency. Transition band, the (usually narrow) band of frequencies between a passband and stopband.
The filter does not attenuate all frequencies outside the desired frequency range completely; in particular, there is a region just outside the intended passband where frequencies are attenuated, but not rejected. This is known as the filter roll-off, and it is usually expressed in dB of attenuation per octave or decade of frequency. Generally ...
The company was created in 1917 from the merger of Blaw Collapsible Steel Centering Company and the Knox Pressed and Welded Steel Company. Blaw-Knox was sold to new owners in 1968, changed owners a few times thereafter, and continues as the Volvo Blaw-Knox brand of paving equipment, sold to Volvo Construction Equipment since 2007.